ActionScript for Flash MX: The Definitive Guide, 2nd Edition By Colin Moock
Chapter 18. ActionScript Language Reference
XML.insertBefore( ) Method
Flash 5
insert a new sibling node before an existing node
theNode.insertBefore(newChild, beforeChild)
Arguments
newChild
An existing XML node object.
beforeChild
The child of theNode before which newChild should be inserted.
Description
The insertBefore( ) method adds newChild to theNode's child list, before beforeChild (theNode can be an XML or XMLnode instance). The insertBefore( ) method is similar to appendChild( ), but it lets us position a new node precisely in an existing XML object hierarchy.
Example
// Create a document with a P node myDoc = new XML('<P>paragraph 2</P>'); // Create another P node and a text node newP = myDoc.createElement("P"); newText = myDoc.createTextNode("paragraph 1"); // Append the text node to the new P node newP.appendChild(newText); // Insert the new P node (including its text child) before the existing P node myDoc.insertBefore(newP, myDoc.firstChild); trace(myDoc); // Displays: "<P>paragraph 1</P><P>paragraph 2</P>"
